Improvement in grain-drying kilns



UNITED STATES PATENT Orrroe- JOHN WHITE, OF BUFFALO, NEW YORK.

IMPROVEMENT IN GRAlN-DRVING KI LNS.

Specification forming part of Letters Patent No. 186,027, dated January9, 1877; application filed October 9, 1876.

To all whom it may concern:

Be it known that I, JOHN WHITE, of the city of Buffalo, in the county ofErie and State of New York, have invented certain new and usefulImprovements in Kilns for Drying Grain, which improvements are fully setforth in the following specification, reference being had to theaccompanying drawings.

venient point, so as to open into the kiln below the opening leading tothe flue, while the tube or pipe for forcing out the air and moistureas-it comes from the kiln, is made to enter the said natural-draft flueat some point above the opening leading into said flue from the kiln,and, by means of a bend or elbow, the current of air and vapor isdirected upward and out of the flue, and thereby increases the naturaldraft of the flue. By this means I obtain a double advantage by firstexhausting an additional quantity of air and vapor from the kiln, andthen increase the natural draft of the flue by forcing the air andmoistare out through the top of the same, in the manner above described.

In said drawings, Figure 1 represents a vertical longitudinal sectionthrough a malt or grain drying kiln, and Fig. '2 is a transversehorizontal section through line X X. Fig. 1.

The letters A B 0 represent the flues for conducting warm air from thefurnaces, which are made in the usual way, are well known, and need nofurther description here. flues A B O are arranged side by side, asshown, A conducting air to the kiln A, B to B, G to O, &c. forated sheetmetal, for supporting the grain to be dried. D is the main floor placedbelow it far enough to leave sufficient air-space E.

air will answer.

The.

D is the usual floor, of per- E is a door, which may be made to slide ingrooves or swing on hinges, so as to be conveniently opened or shut, forpurposes hereinbefore mentioned. The letters F, G, and H represent theopenings from the several kilns leading to the draft-tines F, G, and H,for drawing the warm dry air from the furnaces up through the perforatedfloors D and grain to be dried. I is an ordinary fan blower, but anyother device for exhausting and forcing It receives its motion from abelt, P, driven by suitable engine-power. K represents the exhaust-pipe.It is connected to the pipe L, having pipes L, when a number of flues inthe same kiln are connected; or, when there is but one opening for anoutlet in a kiln, the pipe may pass directly through, as shown at Kbelow the flue-opening G. J is the outlet-pipe from the blower, which isplaced so as to terminate in an elbow in the flue above the opening H.

It will be readily seen that the current of air produced by the fan willtake the direction shown by the arrows G and H thereby exhausting theair from the kiln B, and increasing the natural draft through opening Gand flue G by means of the current of air and vapor passing up and outat H It will also be seen that the relative arrangement of the pipes maybe varied. They may be placed either above or below the flue-openings,or at any convenient point, as shown by dotted lines M or N. The dottedlines N also show the arrangement of the pipes for reaching the kilnsbelow.

I claim as my invention- An air exhausting and forcing device I,provided with a pipe, K, for exhausting the air from the kiln, incombination with a pipe, J, arranged within a natural-draft flue nearthe top or outlet, as specified, through which the air and gasesexhausted from the kiln are forced for the purpose of increasing thedraft of said flue, substantially as described.

JOHN WHITE. Witnesses:

AMOS W. SANGsrEa, J. 0. WHITE.

